19945960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13477}}^1$

素因数の和:13525

約数の個数: 32

約数和(自身を含む): 46094760

約数和(自身を除く): 26148800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13477, 26954, 53908, 67385, 107816, 134770, 269540, 498649, 539080, 997298, 1994596, 2493245, 3989192, 4986490, 9972980, 19945960]

約数ペア:

[(1, 19945960), (2, 9972980), (4, 4986490), (5, 3989192), (8, 2493245), (10, 1994596), (20, 997298), (37, 539080), (40, 498649), (74, 269540), (148, 134770), (185, 107816), (296, 67385), (370, 53908), (740, 26954), (1480, 13477)]